- #1

Punkyc7

- 420

- 0

W=FD

V=integral of surface area * height

F= rho *V

V is the integral of pi(sqrt(4-y^2))^2 from 0-1

D=2-x

so W=rho*V int 2-x from 0-1

i get 11pi rho g/3 and the answer is suppose to be 9 rho pi/4

im not sure where i am going wrong but i thing it has to do with my integration